DE202017106061U1 - Hinge with tensionable flat spiral spring - Google Patents

Abstract

Hinge (10) comprising a pivotable hinge part (12), a fixed hinge part (14) and a tensioned spring element, wherein the pivotable hinge part (12) via a bearing (16) on the fixed hinge part (14) pivotally mounted about a pivot axis (S) is, and wherein the tensionable spring element on the bearing (16) is arranged, characterized in that the spring element is formed as a flat spiral spring (18).

Description

The invention relates to a hinge with a tensionable flat spiral spring according to the preamble of the protection claim. 1

The spring tension of such a hinge determines the automatically spring-induced opening of a closure flap. Conventional luggage storage compartments of aircraft are usually equipped with such springs to bring the flap selbsttätig from a closed position to a fully open position.

Luggage compartments are often equipped with gas springs, which facilitate the opening of the flaps and allow the flaps to be held in the open position. The disadvantage of gas springs is the susceptibility to low temperatures, because z. B. in a heavily cooled aircraft may cause difficulties in opening the storage compartments. In addition, the springs of the hinge are arranged in the luggage storage compartment, thereby reducing the usable storage space and can be easily damaged.

The EP 0 894 933 B1 describes a hinge comprising a pivotable and a fixed hinge part with a common hollow cylinder-like hinge axis, which is fixedly connected to the pivotable hinge part and is rotatably mounted in a journal bearing. The axle bearing body is rigidly connected to the fixed hinge part. In the hinge axis at both ends firmly anchored torsion coil spring is arranged. By adjusting one of the two firmly anchored ends, the tension of the spring is adjustable. The opening of the flap by means of the loaded spring and a damping device ensures the delayed opening movement of the flap.

Furthermore, the EP 2 405 090 B1 an arrangement with the tension of a torsion coil spring of such a hinge is easily adjustable and without reassembly of the spring in the hinge.

A known problem of luggage storage compartments of aircraft is that the unilaterally or bilaterally arranged hinges occupy a not inconsiderable part of the existing volume of the luggage storage compartment, whereby the loadable storage space is reduced. The load can damage the hinges, especially the springs. Mounted hinge covers protect the hinges, but they take up space and make it difficult to install and maintain the hinge. The arrangement and size of generic hinges prevent the hinges from being integrated into the narrow vertical side walls between the luggage storage boxes.

The invention is based on the object, a hinge according to the type specified in the preamble of claim 1 in such a way that the hinge has a space-saving construction.

This object is solved by the characterizing features of claim 1 in conjunction with its preamble features.

The dependent claims form an advantageous development of the invention.

In a known manner, a hinge comprises a fixed hinge part and a pivotable hinge part, which is rotatably mounted about a pivot axis on the fixed hinge part. The axle box is rigidly connected to the fixed hinge part. To the pivot axis, a tensioned coil spring is arranged, which drives the pivotable hinge part. One end of the coil spring is fixedly connected to the journal bearing and the other end is secured in the axle. The tension of the spiral spring is adjustable by means of a worm gear.

According to the invention, it is provided that a tensionable flat spiral spring, arranged on a bearing formed on the fixed hinge part, serves as a drive for the pivotable hinge part. The flat spiral spring is wound as an Archimedean spiral. Starting from the radially inner end of the spiral, the turns run spirally in one plane. The radial size of the spring varies with the number of turns. Flat coil springs are wound from tape or flat material. This ensures advantageously that the flat coil spring allows a very narrow embodiment of the hinge, so that the integration of the hinge in the narrow, vertical side wall between two luggage storage boxes is possible.

The flat spiral spring and the pivot axis of the pivotable hinge part are arranged coaxially on the bearing, wherein the pivot axis defines the opening movement of the flap and the flat spiral spring serves as a drive for the opening movement.

Preferably, the flat coil spring is formed at its outer end so that it is connectable to the pivotable hinge part. As a result, the flat coil spring is anchored at the outer end.

According to an advantageous embodiment of the bearing of the fixed hinge part arranged region of the pivotable hinge part designed as a sliding bearing. It is conceivable that the pivotable hinge part is designed as a hinge leaf with a arranged hinge arm, wherein the sliding bearing is formed at the remote from the hinge leaf end of the hinge arm. The advantages of a sliding bearing are its low wear and the small radial space required. Sliding bearings are easy to assemble, low maintenance and insensitive to shock loads.

It is conceivable that a damping element is arranged on the hinge axis in order to ensure the controlled pivoting of the pivotable hinge part. The high-swinging movement of the flap should be gentle due to safety and not too fast. Preferably, the damping element is arranged in a form-fitting manner on the pivotable hinge part, and rotates with it. Advantageously, it is space-saving stored in the hinged hinge part, whereby a narrow hinge is guaranteed.

According to a further embodiment of the invention, an adjustable torque adjustment is in operative connection with the radially inner end of the flat spiral spring. The torque adjustment is designed such that it is mounted in a form-fitting manner on the bearing, wherein the radially inner end of the flat spiral spring can be connected to the torque adjustment. For example, the flat coil spring may be secured in a groove of the torque adjustment. Preferably, an adjusting screw is arranged on a region of the torque adjustment, which is designed as a gear. The adjusting screw, which is arranged on the fixed part of the hinge, engages with its shaft in the teeth of the torque adjustment. A rotational movement of the adjusting screw causes a rotation of the torque adjustment and thus the tensioning of the flat spiral spring. The adjusting screw ensures the securing of the preloaded setting.

Preferably, a stop for the pivotable hinge part is formed on the fixed hinge part. It is conceivable that the stop comprises a screw, and that the impact of the pivotable hinge part is damped by means of a spring arranged on the screw. The screw allows fine adjustment of the open position of the hinge.

A preferred embodiment provides that the fixed hinge leaf is designed as a housing in which the hinge is arranged. As a result, the mechanics of the hinge is advantageously protected against damage and contamination. It is conceivable that the housing is made of plastic. So it has a low weight and is still very resilient. Plastic parts can be produced with great functionality. Thus, the housing may be formed, for example, with a lid which is positively, positively or materially connected to the housing.

Preferably, all individual parts of the entire mechanism of the hinge are arranged in the housing and are held together by means of housing. For example, the housing may have recesses, walls, and / or brackets that hold, guide, and / or secure the parts.

Further advantages and possible applications of the present invention will become apparent from the following description in conjunction with the embodiments illustrated in the drawings.

In the drawing:

1 a plan view of the hinge according to the invention in the open position;

2 a detailed view of the pivotable hinge part with the arranged flat coil spring and the arranged torque adjustment;

3 a flat spiral spring;

4 Views of the closed and open housing; and

5 an exploded view of the individual components of the hinge.

1 to 5 show in a schematic representation a total with the reference numeral 10 designated hinge.

According to the in 1 illustrated embodiment, the hinge comprises 10 a hinged hinge part 12 and a fixed hinge part 14 , where the fixed hinge part 14 with a warehouse 16 is formed on the pivotable hinge part 12 is rotatably mounted and on which a flat coil spring 18 is arranged. The flat spiral spring 18 and the hinged hinge part 12 are coaxial in stock 16 arranged.

In the 2 illustrated embodiment shows the hinged hinge part 12 , a hinged arm 12a and a hinge leaf 12b includes. The hinge arm 12a is on from the hinge leaf 12b remote end to a bushing 20 trained, the form-fitting with a stock 16 trained journal 22 connects, and thus a plain bearing 23 shaped. The around the camp 16 radially arranged flat spiral spring 18 forms the drive for the hinged hinge part 12 , wherein the pivot axis S defines the movement B of the hinge.

As in 3 shown, is the flat coil spring 18 , starting from its radially inner end 24 wrapped as Archimedean spiral and the turns spiral in a plane. The windings are formed from tape or flat material so that the flat spiral spring 18 perpendicular to the winding plane is a very narrow. The radially outer end 26 and the radially inner end 24 the flat spiral spring 18 are designed so that they are anchored.

According to the in 1 and 2 illustrated embodiments are a torque adjustment 28 on the flat spiral spring 18 arranged, with the radially inner end 24 the flat spiral spring 18 with the torque adjustment 28 connected is. The present is the flat spiral spring 18 in a groove of the torque adjustment 28 anchored. The torque adjustment 28 allows the flat coil spring 18 can be prestressed to the required torque. The pretension of the flat spiral spring 18 is by means of a fixed hinge part 14 arranged adjusting screw 30 changeable, whose shaft is in a toothed area 32 the torque adjustment 28 intervenes. An adjustment of the adjusting screw 30 causes a corresponding rotation of the torque adjustment 28 which causes the at both ends 24 . 26 firmly connected flat spiral spring 18 biases. The set preload is by means of adjusting screw 30 secured. A damping element 34 is on the hinged hinge part 12 arranged and ensures a controlled gentle high swinging movement of the hinged hinge part 12 and the flap, not shown. In the present case is the damping element 34 positive fit with the hinged hinge part 12 connected, with the fixed end of the damping element in the lid 42 is fixed.

According to the in 1 illustrated embodiment is on the fixed hinge part 14 an attack 36 with a stop screw 38 for the hinged hinge part 12 intended. In the fully open position of the flap, the pivotable part strikes a stop screw 38 on the fixed hinge part 14 is arranged. The stop screw 38 Allows fine adjustment of the open position of the hinge 10 , It is conceivable that one on the stop screw 38 arranged spring dampens the impact.

According to the in 4 illustrated embodiment of the invention is the fixed hinge part 14 as a housing 40 educated. The frontal plan view of the housing 40 shows the vertical very narrow embodiment of the hinge 10 coming from the flat coil spring 18 is guaranteed. In the present case, the housing 40 a lid 42 on. It is conceivable that the housing 40 is made of plastic, and that the lid 42 positive, positive or cohesive with the housing 40 connected is. In the case 40 are the individual components of the hinge 10 arranged. The housing 40 keeps the individual parts of the entire mechanics of the hinge 10 together and secures by means of expressions 46 the individual components. Advantageously, the housing protects 40 the mechanics from damage. The through the housing 40 screwed stop screw 38 and the adjusting screw 30 the torque adjustment 28 are by means of openings 44 in the case 40 easily accessible from the outside.

5 represents an exploded view of the hinge 10 in particular showing how the individual parts of the assembly in the housing 40 arranged and removed from the housing 40 are secured.

LIST OF REFERENCE NUMBERS

10

hinge

12

swiveling hinge part

12a

hinge

12b

hinge leaf

14

fixed hinge part

16

camp

18

Flat spiral spring

20

bearing bush

22

spigot

23

bearings

24

inner end of the spring

26

outer end of the spring

28

torque adjustment

30

adjustment

32

toothed range of torque adjustment

34

damping

36

attack

38

stop screw

40

casing

42

cover

44

openings

46

manifestations

B

pivotal movement

S

swivel axis

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 0894933 B1 [0004]
• EP 2405090 B1 [0005]

Claims (9)

Hinge ( 10 ) comprising a pivotable hinge part ( 12 ), a fixed hinge part ( 14 ) and a tensionable spring element, wherein the pivotable hinge part ( 12 ) about a warehouse ( 16 ) on the fixed hinge part ( 14 ) is pivotally mounted about a pivot axis (S), and wherein the tensionable spring element in stock ( 16 ), characterized in that the spring element as a flat spiral spring ( 18 ) is trained. Hinge ( 10 ) according to claim 1, characterized in that the flat spiral spring ( 18 ) in the form of an Archimedean spiral. Hinge ( 10 ) according to claim 1 or 2, characterized in that the flat spiral spring ( 18 ) and the pivot axis are arranged coaxially. Hinge ( 10 ) according to one of the preceding claims, characterized in that the flat spiral spring ( 18 ) at its radially outer end ( 26 ) with the hinged hinge part ( 12 ) is connectable. Hinge ( 10 ) according to claim 1, characterized in that the stock ( 16 ) arranged region of the pivotable hinge part ( 12 ) as plain bearings ( 23 ) is trained. Hinge ( 10 ) according to claim 1, characterized in that the radially inner end ( 24 ) of the flat spiral spring ( 18 ) with an adjustable torque adjustment ( 28 ) is in operative connection. Hinge ( 10 ) according to claim 1, characterized in that the fixed hinge part ( 14 ) an adjustable stop ( 36 ) for the hinged hinge part ( 12 ) having. Hinge ( 10 ) according to claim 1, characterized in that the fixed hinge part ( 14 ) to a housing ( 40 ) is trained. Hinge ( 10 ) according to one of the preceding claims, characterized in that the plain bearing ( 23 ), the adjustable torque adjustment ( 28 ), as well as the adjustable stop in the housing ( 40 ) are arranged.

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